Calcium in PDB 5x2m: Crystal Structure of the Medaka Fish Taste Receptor T1R2A-T1R3 Ligand Binding Domains in Complex with L-Glutamine

Protein crystallography data

The structure of Crystal Structure of the Medaka Fish Taste Receptor T1R2A-T1R3 Ligand Binding Domains in Complex with L-Glutamine, PDB code: 5x2m was solved by N.Nuemket, N.Yasui, N.Atsumi, A.Yamashita, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 49.89 / 2.21
Space group P 1 21 1
Cell size a, b, c (Å), α, β, γ (°) 99.656, 116.355, 129.476, 90.00, 92.20, 90.00
R / Rfree (%) 17.3 / 22.7

Other elements in 5x2m:

The structure of Crystal Structure of the Medaka Fish Taste Receptor T1R2A-T1R3 Ligand Binding Domains in Complex with L-Glutamine also contains other interesting chemical elements:

Chlorine (Cl) 2 atoms
Sodium (Na) 3 atoms

Calcium Binding Sites:

The binding sites of Calcium atom in the Crystal Structure of the Medaka Fish Taste Receptor T1R2A-T1R3 Ligand Binding Domains in Complex with L-Glutamine (pdb code 5x2m). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total only one binding site of Calcium was determined in the Crystal Structure of the Medaka Fish Taste Receptor T1R2A-T1R3 Ligand Binding Domains in Complex with L-Glutamine, PDB code: 5x2m:

Calcium binding site 1 out of 1 in 5x2m

Go back to Calcium Binding Sites List in 5x2m
Calcium binding site 1 out of 1 in the Crystal Structure of the Medaka Fish Taste Receptor T1R2A-T1R3 Ligand Binding Domains in Complex with L-Glutamine


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Crystal Structure of the Medaka Fish Taste Receptor T1R2A-T1R3 Ligand Binding Domains in Complex with L-Glutamine within 5.0Å range:
probe atom residue distance (Å) B Occ
L:Ca971

b:97.3
occ:1.00
OE1 L:GLU189 2.2 63.5 1.0
NE2 L:HIS193 2.3 72.6 1.0
OE2 L:GLU189 2.6 73.3 1.0
CD L:GLU189 2.8 65.3 1.0
CE1 L:HIS193 3.0 69.8 1.0
CD2 L:HIS193 3.4 66.6 1.0
NE L:ARG192 4.0 62.5 1.0
NH2 L:ARG192 4.1 60.8 1.0
ND1 L:HIS193 4.2 69.0 1.0
CG L:GLU189 4.3 60.0 1.0
NH2 L:ARG159 4.3 77.7 1.0
CG L:HIS193 4.4 66.2 1.0
CZ L:ARG192 4.5 73.3 1.0
CB L:ARG192 4.7 73.3 1.0
O L:GLU189 4.7 65.5 1.0
CB L:GLU189 4.9 55.4 1.0

Reference:

N.Nuemket, N.Yasui, Y.Kusakabe, Y.Nomura, N.Atsumi, S.Akiyama, E.Nango, Y.Kato, M.K.Kaneko, J.Takagi, M.Hosotani, A.Yamashita. Structural Basis For Perception of Diverse Chemical Substances By T1R Taste Receptors Nat Commun V. 8 15530 2017.
ISSN: ESSN 2041-1723
PubMed: 28534491
DOI: 10.1038/NCOMMS15530
Page generated: Sat Dec 12 05:50:24 2020

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